a study of complexation-ability of neutral schiff bases to some metal cationscomplexation-ability中性希夫碱的研究一些金属阳离子.pdfVIP

Int. J. Mol. Sci. 2007, 8, 933-942 International Journal of Molecular Sciences ISSN 1422-0067 © 2007 by MDPI /ijms Full Research Paper A Study of Complexation-ability of Neutral Schiff Bases to Some Metal Cations 1 1 2 2 2,* Giray Topal , Recep Tümerdem , Ismet Basaran , Arzu Gümüş and Umit Cakir 1 Dicle University, Faculty of Education, Department of Chemistry, 21280, Diyarbakir, Turkey 2 Balikesir University, Faculty of Science and Art, Department of Chemistry, 10145, Balikesir, Turkey * Author to whom correspondence should be addressed; E-mail: ucakir@.tr Received: 30 July 2007; in revised form: 20 August 2007 / Accepted: 27 August 2007 / Published: 4 September 2007 Abstract: The constants of the extraction equilibrium and the distribution for dichloromethane as an organic solvent having low dielectric constant of metal cations with chiral Schiff bases, benzaldehydene-(S)-2-amino-3-phenylpropanol (I), o- hydroxybenzaldehydene-(S)-2-amino-3-phenyl-propanol (II), benzaldehydene-(S)-2- amino-3-methylbutanol (III) with anionic dyes [4-(2-pyridylazo)-resorcinol mono sodium monohydrate (NaPar), sodium picrat (NaPic) and potassium picrat (KPic)] and some heavy metal chlorides were determined at 25 oC. All the ligands have given strongest complexati